749686080 has 448 divisors, whose sum is σ = 2883944448. Its totient is φ = 162570240.

The previous prime is 749686033. The next prime is 749686087. The reversal of 749686080 is 80686947.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749686087) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5902977 + ... + 5903103.

It is an arithmetic number, because the mean of its divisors is an integer number (6437376).

Almost surely, 2^749686080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749686080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1441972224).

749686080 is an abundant number, since it is smaller than the sum of its proper divisors (2134258368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

749686080 is a wasteful number, since it uses less digits than its factorization.

749686080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 749686080 is about 27380.3959065606. The cubic root of 749686080 is about 908.4335163935.

The spelling of 749686080 in words is "seven hundred forty-nine million, six hundred eighty-six thousand, eighty".